Dialyzer complains about search_results record. [JIRA: CLIENTS-695]

[building39]

riakc.hrl defines search_results like this:

-type search_doc() :: [{binary(), binary()}].
-type search_maxscore() :: float().
-type search_number_found() :: non_neg_integer().

-record(search_results, {
docs :: [search_doc()], %% Result documents
max_score :: float(), %% Maximum score
num_found :: non_neg_integer() %% Number of results
}).

The results record I get back looks like this:

{search_results,
[
{
<<"index_name">>,
[
{
<<"score">>,
<<"3.48490639999999984866e+00">>
},
{
<<"_yz_rb">>,
<<"bucket_type">>
},
{
<<"_yz_rt">>,
<<"bucket_name">>
},
{
<<"_yz_rk">>,
<<"a5680e4664ff480785a50e8324f75384000452410048d33f">>
},
{
<<"_yz_id">>, <<"1_bucket_type_bucket_name_a5680e4664ff480785a50e8324f75384000452410048d33f_30">>
}
]
}
],
3.4849064350128174,
1
}

So, doc is defined as [{binary(), binary()}], but I'm getting back [{binary(), [{binary(), binary()}]}].

Dialyzer complains thusly:

The pattern [{_, Doc}] can never match the type [[{binary(),binary()}]]

where my code looks like:

{ok, Results} = riakc_pb_socket:search(Pid, Index, Query),
[{_, Doc}] = Results#search_results.docs.

Is the record definition wrong, or am I just misunderstanding something?